CVE-2026-39868 Details
Description
This issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.
A vulnerability in the WebKit component of Apple iOS, iPadOS, and macOS Tahoe can lead to memory corruption and allow an application to cause unexpected system termination or corrupt kernel memory. This issue arises from a race condition that was not properly managed, creating a potential for applications to manipulate kernel memory or disrupt system processes.
Users can update to iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 30, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple ipados | < 26.5.2 |
CPE
Remediation
| |
| apple iphone os | < 26.5.2 |
CPE
Remediation
| |
| apple macos | < 26.5.2 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 17, 2026 | CVE Modified | [email protected] |
| Jul 27, 2026 | CVE Modified | [email protected] |
| Jun 30, 2026 | Initial Analysis | [email protected] |
| Jun 30, 2026 | CVE Modified | CISA-ADP |
| Jun 29, 2026 | New CVE Received | [email protected] |